creators_name: Weller, Richard
creators_name: Davies, Robert
editors_name: Powell, Jane
editors_name: et al., 
type: conference_item
datestamp: 2006-10-20
lastmod: 2009-08-20 14:32:22
metadata_visibility: show
title: The effect of diet on the milk quality of organic dairy cows
ispublished: pub
subjects: 1dairy
subjects: 3animal
subjects: 3feeding
full_text_status: public
keywords: Colloquium of Organic Researchers; COR;  dairy; milk protein; lactose;  diets; milk quality
abstract: This report was presented at the UK Organic Research 2002 Conference. Changes in milk quality were evaluated with spring-calving dairy cows and heifers fed organic diets and different levels of concentrates during early lactation. The diets were based on ad libitum forage and either 2 kg of concentrates/day (Diet 1) or concentrates fed according to milk yield up to a maximum of 7 kg/day (Diet 2). Average milk yields during the study for the cows and heifers were 23.1 and 20.1 kg/day (Diet 1) and 25.8 and 24.0 kg/day (Diet 2), respectively. The highest number of samples with a fat to protein ratio of 1.4 or > were found in samples collected from cows and heifers fed Diet 1 (20.9 and 50.0%). The lowest milk protein value of 2.86% was recorded from the heifers fed Diet 1. Low milk lactose values were correlated to high somatic cell counts.
date: 2002
date_type: published
publication: Proceedings of the UK Organic Research 2002 Conference
publisher: Organic Centre Wales, Institute of Rural Studies, University of Wales Aberystwyth
pagerange: 197-198
refereed: never
referencetext: Heur C; Van Straalen W M; Schukken Y H; Dirkzwager A;Noordhuizen J P T M (2000) Prediction
of energy balance in a high yielding dairy herd in early lactation. Livestock Production Science 65, 91-105.
citation: Weller, Richard and Davies, Robert (2002) The effect of diet on the milk quality of organic dairy cows. UK Organic Research 2002 Conference, Aberystwyth, 26-28 March 2002. In: Powell, Jane and et al., (Eds.) Proceedings of the UK Organic Research 2002 Conference, Organic Centre Wales, Institute of Rural Studies, University of Wales Aberystwyth, pp. 197-198.
document_url: http://orgprints.org/8391/1/weller_davies_diet_milk_quality.pdf